Patent Law FAQ

This FAQ answers all your questions about patent law, patent procedure, and the patent examination process.

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MPEP 200 - Types and Status of Application; Benefit and Priority Claims (4)

The reference to the prior-filed application to claim benefit under 35 U.S.C. 120 or 119(e) must be submitted within the following time periods under 37 CFR 1.78:
  • For an application filed under 35 U.S.C. 111(a), the later of four months from the filing date or sixteen months from the filing date of the prior-filed application
  • For a national stage application under 35 U.S.C. 371, the later of four months from national stage commencement under 35 U.S.C. 371(b) or (f), four months from initial national stage submission, or sixteen months from the filing date of the prior-filed application
Failure to timely submit the reference is considered a waiver of any benefit claim. A petition and fee would be required to accept a delayed submission. See MPEP 211.04.

To claim the benefit of an earlier filing date under 35 U.S.C. 120, the following requirements must be met:

  • The later-filed application must be an application for a patent for an invention which is also disclosed in the prior application
  • The disclosure of the invention in the prior application and in the later-filed application must be sufficient to comply with the requirements of 35 U.S.C. 112(a) except for the best mode requirement
  • The later-filed application must contain a specific reference to the prior application
  • The later-filed application must be filed before the patenting or abandonment of or termination of proceedings on the first application

As stated in the MPEP: “To be entitled to the benefit of the filing date of an earlier-filed application, the later-filed application must be an application for a patent for an invention which is also disclosed in the prior application (the parent or earlier-filed nonprovisional application or provisional application for which benefit is claimed); the disclosure of the invention in the prior application and in the later-filed application must be sufficient to comply with the requirements of 35 U.S.C. 112(a) except for the best mode requirement.”

To claim the benefit of an earlier filing date under 35 U.S.C. 120 and 119(e), a later-filed application must meet several requirements:

  • The prior-filed application must name the inventor or at least one joint inventor named in the later-filed application and must be entitled to a filing date
  • The prior-filed application must meet disclosure requirements under 35 U.S.C. 112(a) to support the claims in the later-filed application, except for the best mode requirement
  • The later-filed application must contain a specific reference to the prior-filed application
  • The reference to the prior application must be submitted within the time periods set forth in 37 CFR 1.78

Failure to timely submit the reference to the prior-filed application within the time periods specified in 37 CFR 1.78 is considered a waiver of any benefit claim under 35 U.S.C. 120, 121, 365(c), or 386(c) to the prior-filed application. See 37 CFR 1.78(d)(3)(iii). The time periods are not extendable.

If the reference to the prior-filed application is submitted after the time period provided by 37 CFR 1.78, a petition and the petition fee under 37 CFR 1.17(m) would be required to accept the delayed claim. The petition must be accompanied by:

  • The reference required by 35 U.S.C. 120 and 37 CFR 1.78 to the prior-filed application
  • The petition fee
  • A statement that the entire delay between the date the benefit claim was due and the date the claim was filed was unintentional

MPEP 211 - Claiming the Benefit of an Earlier Filing Date Under 35 U.S.C. 120 and 119(e) (4)

The reference to the prior-filed application to claim benefit under 35 U.S.C. 120 or 119(e) must be submitted within the following time periods under 37 CFR 1.78:

  • For an application filed under 35 U.S.C. 111(a), the later of four months from the filing date or sixteen months from the filing date of the prior-filed application
  • For a national stage application under 35 U.S.C. 371, the later of four months from national stage commencement under 35 U.S.C. 371(b) or (f), four months from initial national stage submission, or sixteen months from the filing date of the prior-filed application

Failure to timely submit the reference is considered a waiver of any benefit claim. A petition and fee would be required to accept a delayed submission. See MPEP 211.04.

To claim the benefit of an earlier filing date under 35 U.S.C. 120, the following requirements must be met:

  • The later-filed application must be an application for a patent for an invention which is also disclosed in the prior application
  • The disclosure of the invention in the prior application and in the later-filed application must be sufficient to comply with the requirements of 35 U.S.C. 112(a) except for the best mode requirement
  • The later-filed application must contain a specific reference to the prior application
  • The later-filed application must be filed before the patenting or abandonment of or termination of proceedings on the first application

As stated in the MPEP: “To be entitled to the benefit of the filing date of an earlier-filed application, the later-filed application must be an application for a patent for an invention which is also disclosed in the prior application (the parent or earlier-filed nonprovisional application or provisional application for which benefit is claimed); the disclosure of the invention in the prior application and in the later-filed application must be sufficient to comply with the requirements of 35 U.S.C. 112(a) except for the best mode requirement.”

To claim the benefit of an earlier filing date under 35 U.S.C. 120 and 119(e), a later-filed application must meet several requirements:

  • The prior-filed application must name the inventor or at least one joint inventor named in the later-filed application and must be entitled to a filing date
  • The prior-filed application must meet disclosure requirements under 35 U.S.C. 112(a) to support the claims in the later-filed application, except for the best mode requirement
  • The later-filed application must contain a specific reference to the prior-filed application
  • The reference to the prior application must be submitted within the time periods set forth in 37 CFR 1.78

Failure to timely submit the reference to the prior-filed application within the time periods specified in 37 CFR 1.78 is considered a waiver of any benefit claim under 35 U.S.C. 120, 121, 365(c), or 386(c) to the prior-filed application. See 37 CFR 1.78(d)(3)(iii). The time periods are not extendable.

If the reference to the prior-filed application is submitted after the time period provided by 37 CFR 1.78, a petition and the petition fee under 37 CFR 1.17(m) would be required to accept the delayed claim. The petition must be accompanied by:

  • The reference required by 35 U.S.C. 120 and 37 CFR 1.78 to the prior-filed application
  • The petition fee
  • A statement that the entire delay between the date the benefit claim was due and the date the claim was filed was unintentional

Patent Law (4)

The reference to the prior-filed application to claim benefit under 35 U.S.C. 120 or 119(e) must be submitted within the following time periods under 37 CFR 1.78:

  • For an application filed under 35 U.S.C. 111(a), the later of four months from the filing date or sixteen months from the filing date of the prior-filed application
  • For a national stage application under 35 U.S.C. 371, the later of four months from national stage commencement under 35 U.S.C. 371(b) or (f), four months from initial national stage submission, or sixteen months from the filing date of the prior-filed application

Failure to timely submit the reference is considered a waiver of any benefit claim. A petition and fee would be required to accept a delayed submission. See MPEP 211.04.

To claim the benefit of an earlier filing date under 35 U.S.C. 120, the following requirements must be met:

  • The later-filed application must be an application for a patent for an invention which is also disclosed in the prior application
  • The disclosure of the invention in the prior application and in the later-filed application must be sufficient to comply with the requirements of 35 U.S.C. 112(a) except for the best mode requirement
  • The later-filed application must contain a specific reference to the prior application
  • The later-filed application must be filed before the patenting or abandonment of or termination of proceedings on the first application

As stated in the MPEP: “To be entitled to the benefit of the filing date of an earlier-filed application, the later-filed application must be an application for a patent for an invention which is also disclosed in the prior application (the parent or earlier-filed nonprovisional application or provisional application for which benefit is claimed); the disclosure of the invention in the prior application and in the later-filed application must be sufficient to comply with the requirements of 35 U.S.C. 112(a) except for the best mode requirement.”

To claim the benefit of an earlier filing date under 35 U.S.C. 120 and 119(e), a later-filed application must meet several requirements:

  • The prior-filed application must name the inventor or at least one joint inventor named in the later-filed application and must be entitled to a filing date
  • The prior-filed application must meet disclosure requirements under 35 U.S.C. 112(a) to support the claims in the later-filed application, except for the best mode requirement
  • The later-filed application must contain a specific reference to the prior-filed application
  • The reference to the prior application must be submitted within the time periods set forth in 37 CFR 1.78

Failure to timely submit the reference to the prior-filed application within the time periods specified in 37 CFR 1.78 is considered a waiver of any benefit claim under 35 U.S.C. 120, 121, 365(c), or 386(c) to the prior-filed application. See 37 CFR 1.78(d)(3)(iii). The time periods are not extendable.

If the reference to the prior-filed application is submitted after the time period provided by 37 CFR 1.78, a petition and the petition fee under 37 CFR 1.17(m) would be required to accept the delayed claim. The petition must be accompanied by:

  • The reference required by 35 U.S.C. 120 and 37 CFR 1.78 to the prior-filed application
  • The petition fee
  • A statement that the entire delay between the date the benefit claim was due and the date the claim was filed was unintentional

Patent Procedure (4)

The reference to the prior-filed application to claim benefit under 35 U.S.C. 120 or 119(e) must be submitted within the following time periods under 37 CFR 1.78:

  • For an application filed under 35 U.S.C. 111(a), the later of four months from the filing date or sixteen months from the filing date of the prior-filed application
  • For a national stage application under 35 U.S.C. 371, the later of four months from national stage commencement under 35 U.S.C. 371(b) or (f), four months from initial national stage submission, or sixteen months from the filing date of the prior-filed application

Failure to timely submit the reference is considered a waiver of any benefit claim. A petition and fee would be required to accept a delayed submission. See MPEP 211.04.

To claim the benefit of an earlier filing date under 35 U.S.C. 120, the following requirements must be met:

  • The later-filed application must be an application for a patent for an invention which is also disclosed in the prior application
  • The disclosure of the invention in the prior application and in the later-filed application must be sufficient to comply with the requirements of 35 U.S.C. 112(a) except for the best mode requirement
  • The later-filed application must contain a specific reference to the prior application
  • The later-filed application must be filed before the patenting or abandonment of or termination of proceedings on the first application

As stated in the MPEP: “To be entitled to the benefit of the filing date of an earlier-filed application, the later-filed application must be an application for a patent for an invention which is also disclosed in the prior application (the parent or earlier-filed nonprovisional application or provisional application for which benefit is claimed); the disclosure of the invention in the prior application and in the later-filed application must be sufficient to comply with the requirements of 35 U.S.C. 112(a) except for the best mode requirement.”

To claim the benefit of an earlier filing date under 35 U.S.C. 120 and 119(e), a later-filed application must meet several requirements:

  • The prior-filed application must name the inventor or at least one joint inventor named in the later-filed application and must be entitled to a filing date
  • The prior-filed application must meet disclosure requirements under 35 U.S.C. 112(a) to support the claims in the later-filed application, except for the best mode requirement
  • The later-filed application must contain a specific reference to the prior-filed application
  • The reference to the prior application must be submitted within the time periods set forth in 37 CFR 1.78

Failure to timely submit the reference to the prior-filed application within the time periods specified in 37 CFR 1.78 is considered a waiver of any benefit claim under 35 U.S.C. 120, 121, 365(c), or 386(c) to the prior-filed application. See 37 CFR 1.78(d)(3)(iii). The time periods are not extendable.

If the reference to the prior-filed application is submitted after the time period provided by 37 CFR 1.78, a petition and the petition fee under 37 CFR 1.17(m) would be required to accept the delayed claim. The petition must be accompanied by:

  • The reference required by 35 U.S.C. 120 and 37 CFR 1.78 to the prior-filed application
  • The petition fee
  • A statement that the entire delay between the date the benefit claim was due and the date the claim was filed was unintentional